Vision

by

Arjun Subbiah

Anatomy of the Eye

Short Sight - Myopia

Myopic vision

Normal Myopic

Treatment of Myopia

Glasses

Contact Lenses

Surgery - LASIK

Far Sight – Hypermetropia

Convex Lens Correction

Vision in Hyperopic

Normal Hyperopia

Treatment for Hyperopia – Bifocal Glasses

Contact Lens

Excimer Laser for Hyperopia Correction

Astigmatism

Astigmatic Vision

LASIK for treatment of Astigmatism

Presbyopia

Presbyopia describes the condition where the eye exhibits a progressively diminished ability to focus on near objects with age.

Presbyopia's exact mechanisms are not known with certainty, however, the research evidence most strongly supports a loss of elasticity of the crystalline lens,

Although changes in the lens's curvature from continual growth and loss of power of the ciliary muscles (the muscles that bend and straighten the lens) have also been postulated as its cause.

Normal and Presbyopic Vision

New Laser Treatment

A special kind of laser is used for

cutting, a femtosecond laser (fs-

laser), which is not only

extremely precise, but which

also makes very fine cut

grooves. Since the size and

position of the lens differ from

patient to patient, control and

monitoring of the cutting is done

via optical coherence

tomography (OCT). The grooves

form gliding planes in the tissue

of the lens and can restore

elasticity.

Treatments

Senile Cataract

Cataract

In the United States, age-related lenticular changes

have been reported in 42% of those between the ages of

52 to 64, 60% of those between the ages 65 and 74, and

91% of those between the ages of 75 and 85

IOL Insertion Following Lens Removal

IOL Implantation following Removal of Lens

Diabetic Retinopathy

Diabetic Retinopathy vs. Normal Eye

Effects of Diabetic Retinopathy

Normal vs. Diabetic Retinopathy Vision

End